﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    class Duck : Animal, Infeat
    {
        
        public void Youyong()
        {
            Console.WriteLine("我会游泳");
        
        }
        public void Pashu() 
        {
        
        }
    }
}
